Passive Radiator / Folded Port

American Bass XFL-1022

Best box: 2.4 L sealed · Fc 90.4 Hz · F3 79.0 Hz

Predicted SPL response of the American Bass XFL-1022 in the recommended 2.4 L sealed box versus the alternative — open it in the simulator Open and tweak this box live ↗

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⚠️ Engineering Notice for Builders

  • Straight vent would be 305.4 cm long: not physically buildable as a simple tube. Use a passive radiator, a folded slot port or model a 3D folded duct in Load Forge Studio.

Textbook Bass Reflex — not recommended

PORT NOT BUILDABLE
Net Box Volume (Vb) 5.1 Liters
Tuning Frequency (Fb) 47.9 Hz
F3 (-3 dB Cutoff) 55.4 Hz
F6 / F10 Extension 47.1 Hz / 39.5 Hz
Port Inner Diameter Ø 12.5 cm
Port Physical Length 305.4 cm
First Pipe Resonance 56.0 Hz
Estimated MOL @ F3 113.4 dB SPL
⚠️ Port feasibility: a straight tube would need 305.4 cm and cannot fit in a practical cabinet, and no nearby retune stays buildable without a bass hump. Prefer the sealed alignment, a passive radiator, or a 3D folded duct in Load Forge Studio.
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 2.4 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 90.4 Hz
F3 (-3 dB Cutoff) 79.0 Hz
F6 / F10 Extension 64.4 Hz / 51.1 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 38.6 Hz
Total Q (Qts) 0.3
Electrical Q (Qes) 0.321
Mechanical Q (Qms) 4.51
Equivalent Volume (Vas) 10.8 Liters
Diaphragm Area (Sd) 324.3 cm²
DC Resistance (Re) 4.0 Ω
Efficiency Bandwidth Product (EBP) 120.1
Linear Excursion (Xmax) 17.0 mm
Thermal Power (Pe) 1500.0 W
Nominal Diameter 10.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for American Bass XFL-1022?

A simple ported box is not recommended for American Bass XFL-1022: the textbook alignment (5.1 liters tuned to 47.9 Hz) needs a 305.4 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.

Can American Bass XFL-1022 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 2.4 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 79.0 Hz.

What port dimensions should be used for American Bass XFL-1022 to avoid port chuffing?

A straight 12.5 cm port would need 305.4 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.

Shareable Acoustic Card for Forums & Social Media

Embed this design card on DIYAudio, AVSForum, Reddit, or Facebook. It shows the calculated F3, MOL (when the power rating is published) and box parameters.

American Bass XFL-1022 Enclosure Card
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